As you are full time, go as a woman. If you went as a male, your paper work would out you just as fast as your dress would. On the other hand, the courts are very sensitive about this and when my roommate appeared before the judge, he was very careful not to say anything that would have been embarrassing in open court. The name change before her, he ask the guy several questions but my roommate was addressed as female, no mention of the past sex or name was made in court. Just relax and don't expect any surprises because it should be very routine.